Re: [jgrapht-users] add edge to directed graph in both directions

[Szabolcs B. <bes...@gm...>]

http://jgrapht-users.107614.n3.nabble.com/Mixed-graphs-td4024952.html

Üdvözlettel,

Besenyei Szabolcs

2015-06-23 18:30 GMT+02:00 Joris Kinable <de...@gm...>:

> Say I have a list of directed and undirected edges which I would like to
> represent in the same graph. Every undirected edge (i,j) can be represented
> in a directed graph by adding two arcs: (i,j) and (j,i). The following code
> does however *not* achieve this:
>
> public  static void main(String[] args){
>     DirectedGraph<Integer, String> directedGraph=new
> SimpleDirectedGraph<Integer, String>(String.class);
>     String s="UndirectedEdge";
>     directedGraph.addVertex(1);
>     directedGraph.addVertex(2);
>     System.out.println(directedGraph.addEdge(1,2,s));
>     System.out.println(directedGraph.addEdge(2,1,s));
> }
>
> The second addEdge call will return false because edge s is already in the
> graph. What would be a clean way to resolve this issue?
>
> Thanks,
>
> Joris
>
>
> ------------------------------------------------------------------------------
> Monitor 25 network devices or servers for free with OpManager!
> OpManager is web-based network management software that monitors
> network devices and physical & virtual servers, alerts via email & sms
> for fault. Monitor 25 devices for free with no restriction. Download now
> http://ad.doubleclick.net/ddm/clk/292181274;119417398;o
> _______________________________________________
> jgrapht-users mailing list
> jgr...@li...
> https://lists.sourceforge.net/lists/listinfo/jgrapht-users
>
>